''Perisphinctes'' is an extinct

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

ammonite Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...

cephalopod. They lived during the

Middle Middle or The Middle may refer to: * Centre (geometry), the point equally distant from the outer limits. Places * Middle (sheading), a subdivision of the Isle of Man * Middle Bay (disambiguation) * Middle Brook (disambiguation) * Middle Creek ...

Late Jurassic The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen ...

epochs and serve as an

index fossil Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.Hine, Robert. "Biostratigraphy." ''Oxford Reference: Dictionary of Biology ...

for that time period. The species ''P. boweni'' was named after the English chemist and geologist E. J. Bowen (1898–1980).

Distribution

Cephalopods of species belonging to this genus have been found in the Jurassic of Antarctica, Argentina, Chile, Cuba, Egypt, Ethiopia, France, Germany, Hungary, India, Iran, Italy, Japan, Madagascar, Poland, Portugal, Russia, Saudi Arabia, Spain, Switzerland, the United Kingdom and Yemen.

Gallery

File:Perisphinctes (Prosososphinctes) virguloides (Waagen).jpg, ''Perisphinctes virguloides'' File:Perisphinctes cf choffati.JPG, '' Perisphinctes choffati'' File:Perisphinctes plicatilis 2.jpg, ''Perisphinctes plicatilis'' File:Perisphingtes de Talant.JPG, ''Perisphingtes oxfordien''

References

{{- Ammonitida genera Perisphinctidae Late Jurassic ammonites Late Jurassic ammonites of Europe Ammonites of Africa Jurassic animals of Africa Ammonites of Asia Jurassic Asia Ammonites of South America Jurassic Argentina Jurassic Chile Fossil taxa described in 1869 Callovian first appearances Late Jurassic extinctions